Fireproof of construction for buildings.



Patented Oct; 7, I902;

P. F. BRANDSTEDT.

FIREPROOF CONSTRUCTION FOR BUILDINGS.

(Appljpation filed Feb. 28, 1902.

(no Model.)

a. 'Uic.

LTE/

/v VENTOR I P. F. Brandsiedt W/TNES-FES NB) Ufa/ad DRIVE 73.

UNITED STATES PATENT OFFICE.

PAUL F. BRANDSTEDT, OF \VASHING'ION, DISTRICT OF COLUMBIA.

FIREPROOF CONSTRUCTlON FOR BUILDINGS.

SPECIFICATION forming part of Letters Patent No. 710,836, dated bctoloer 7, 1902.

Application filed February 28, 1902. Serial No. 96,182. (No model.)

To all whom it may concern:

Be it known that I, PAUL F.13RANDSTEDT, residing at Washington city, in the District of Columbia, have invented a new and Improved Fireproof Construction for Buildings, of which the following is a specification.

My present invention is in the nature of an improved fireproof construction for buildings, and particularly relates to the construction of partition Walls or ceilings in which metallic lathing; forms an element for receiving the plastic material, and it primarily seeks to provide an improved construction of the character stated, simple, economical, compact, and possessing the elements of strength and rigidity, as Well as capable of being put up in a rapid and convenient manner.

In its generic nature my present invention specially comprehends a sheet-metal frame, bar, stud, or purlin,'preferably corrugated or U-shaped in cross-section, having opposite faces, adapted to form solid bearing-surfaces to engage with the bearing portions of the metallic lathing at the opposite sides of the stud or frame and a means for drawing the adjacent ends of a pair of lath-sections tightly and understrain against and interlocked with the said stud or frame, the said lath-attaching means having such arrangement relatively to the lath-sections and the stud or frame whereby to maintain the said lath-sections at'a point centrally between the outer portions of the stud to provide fora uniform thickness of plaster at each side of the metallic lathing and the stud or frame instead of an irregular thickness, heavy at one side and light at the other side thereof, as is usual in the common type of metallic or fireproof con structions now in use.

My present invention in its complete make up also includes a novel construction of clamping means for securely holding the adjacent ends of two sections of metallic portions firmly seated against and interlockedwith the metallic stud; and in its more subordinate features it consists in certain novel details of construction and peculiar combination of parts, all of which will hereinafter be fully explained and specifically pointed out in the appended claims, reference being had to the accompanying drawings, in which Figure 1 is an elevation of a fragmentary portion of a fireproof partition constructed in accordance with my invention. Fig. 2 is a vertical section thereof on theline 2 2 of Fig. 1 looking in the direction of the arrow. Fig. 3 illustrates a simple form of lath clamping and tie devices. Fig. 4 is a horizontal section of the metallic stud and the lath-sections, showing the applicationof the tie shown in Fig. 3. Figs. 5 and flare detail views illustrating the preferred form of tie or clamp member and the manner of applying the same. Fig. 7 is a detail view of the said preferred construction of tie or clamp member in its blank form. Fig. 8 is a detail View hereinafter referred to. Fig. 9 is a further modification of my tie.

In my present form of fireproof construction the same embodies a frame, stud, or purlin, preferably formed of sheet metal, and for strength and rigidity the stud is substantially U -shaped in cross-section, with its ends a a, bent back to produce parallel surfaces m 00, disposed in a plane at right angles to the center or body part, (indicated by y.)

It should be stated that While the construction of the studor frame just referred to is the preferred one, the 1 said stud or member (designated by A) may be I-shaped in crosssection, as illustrated in Fig. 8. When the member A is made in definite lengths, its body portion y is extended at each end, as indicated by y, to form angle-plates for conveniently securing the upper and lower ends of the stud to the fioor'and ceiling, as shown in Fig. 1.

- In the practical construction, the stud or member A is disposed in a transverse plane to the partition, whereby its body portion y will present fiat opposing surfaces to receive the flat bearing members of the opposing ends of two lath-sections, as indicated by B B in the drawings. The lath sections B are stamped or otherwise formed of sheet metal and may he of any approvedconstruction, but on the score of economy, for general effectiveness, for positivelysustaining the plastic material, and for conveniently providing for a solid bearing-flange to cooperate with the surfaces y of the stud I use the well-known herring-bone metal lathing; but instead of securing the same with the backbone or ridge member 0, disposed in diagonal relation to the studding, as is commonly done in my construction, the said lathing (designated by B) is held with its ridge or bone section 0 in a vertical plane with the studding, as shown. This relative arrangement of the lathing and the studding I find very advantageous, for the reason that in securing the lathing to the studding the same is cut off close along one edge of the bone or ridge portion 0, and the said out ridge portion 0 is turned at right angles to the ribs 0 to produce a solid vertically-extending angle-bearing 0 adapted to lie flatwise against the stud A, as clearly shown in Figs. 4 and 5, by reference to which it will also be noticed that by reason of the manner in which the lath portion is arranged to cooperate with the stud the said lath portion can be conveniently positioned at a point midway the outer flat face a: of the stud, and thereby provide for filling the plastic material on the metal partition in equal thicknesses on each side, a result difficult to obtain in the ordinary construction of metal stud and lath partitions.

In practice the plastic material (designated by D) is put upon both sides of the metal partition and to a thickness sufficient to embed the fiat outer face of the stud A when a plain partition is used. When it is desired to fit on the regular partition a supplemental surface for supporting ornamental internal fittings, the plaster only need be filled flush with the surfaces 03 m of the stud. To expose the said surfaces and to facilitate the ready attachment of supplemental fixings, the said surfaces may be slitted, as indicated at a For conveniently and economically securing the ends of the lath-sections to the stud the body part of the stud is formed with a number of vertical slots at", with which and the lath-sections cooperate a novel construction of fastener, which forms an essential feature of my present invention.

In the simplest form the fastener (designated by 1) consists of a rod, strip, or plate having a shoulder or ofiset 1 ata point midway its ends, whereby to bring the horizontal portions l thereof in parallel planes and the turned-back member 1 of one end into alinement with the portion 1 of the other end, such arrangement of parts permitting of interlocking the hook portion of one end to the fastener in the lath-body at one side of the stud from one direction and the hook part of the other end to interlock with the lathportion at the other side from the opposite direction, as clearly shown in Fig. 4.

In the preferred construction the fastener 1 consists of a sheet-metal body provided centrally with upturned flanges 1 1, one at each side, the purpose of which will presently appear. In fitting the lath-sections to the stud A one end of the fastener 1 is slipped through the slot in the stud and the said end clenched and interlocked with the lath-body, and in clenching the projected end of the fastener it is so drawn that its flanges 1 1 will tightly bear against the outer side of the stud and at the same time pull the bearing part of the lath to. which it is clenched tightly against the stud.

By providing the fastener with flanges, as described, in putting up the partition one end can be readily slipped through the slot in the stud and said projected end drawn tightly over the lathing at the side at which the inserted end of the fastener projects, and the said lathing thereby will be tightly clamped against the stud and the opposite ends of the fasteners held in position for conveniently connecting with the lathing at that side of the stud.

In my present construction the metallic lathing can be not only quickly and economically made fast with the studs or frame members A, but the connection be of a rigid and stable character. Furthermore, the lathing being centrally of the studs the plaster can be uniformly applied on both sides and sagging of the partition be almost entirely avoided.

Slight changes in the detailed arrangement of the parts shown and described can be readily made without departing from the scope o the appended claims.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A fireproof construction, comprising a sheet-metal stud, having transverse opposing bearing-surfaces, metallic-lath sections adapted to bear against the opposing bearing-surfaces, and a tie extended through the said stud for engaging the adjacent ends of the two lath-sections, and adapted to draw the same toward each other against the stud.

2. In a fireproof partition, a metallic stud, having a transversely-disposed bearing-face, a metallic-lath section, having a verticallydisposed bearing portion to engage the bearing-face of the stud, and a metallic clip passed through the stud, and adapted to interlock therewith, and the metallic lathing to hold the two in a rigid relation, as set forth.

3. In a fireproof partition, a metallic stud having transversely-disposed bearing faces and slots, a pair of metallic-lath sections, each having a vertical bearing-surface to engage the bearing-faces of the stud, and a metallic clip adapted to extend through the slot in the stud, and having its ends made to bend over and interlock with the metalliclath sections and draw their bearing-surfaces inwardly against the stud,as set forth.

a. A partition, consisting of metallic studs, having transversely-disposed bearing portions, metallic-lath sections having vertical angle portions, adapted to bear against the bearing portions of the stud, and means for holding the said lath-sections at a point midway of the bearing portion of the studs, and for holding the studs and lath-sections interlocked, as set forth.

5. The combination with the metallic stud,

having a transversely-disposed bearing portion, said portion having vertically-extending slots, a metallic-lath section for each side of the stud, each section having an angled surface to bear against the bearing portion of the stud, metal clips having one end adapted to slip through the slots in the stud, and means for preventing the clips pulling through the stud, said clips having their ends formed to interlock with the lath-sections, as specified.

6. A partition, consisting of metallic studs, extending from a floor to a ceiling, metalliclath sections, having vertical bearing edges to abut the studs, metallic-clip members extended laterally from the studs in the plane 

